import GLenum from './GLenum';
import ActiveInfo from './ActiveInfo';
import Buffer from './Buffer';
import Framebuffer from './Framebuffer';
import Renderbuffer from './Renderbuffer';
import Texture from './Texture';
import Program from './Program';
import Shader from './Shader';
import ShaderPrecisionFormat from './ShaderPrecisionFormat';
import UniformLocation from './UniformLocation';
import GLmethod from './GLmethod';

const processArray = (array, checkArrayType = false) => {
  function joinArray(arr, sep) {
    let res = '';

    for (let i = 0; i < arr.length; i++) {
      if (i !== 0) {
        res += sep;
      }

      res += arr[i];
    }

    return res;
  }

  let type = 'Float32Array';

  if (checkArrayType) {
    if (array instanceof Uint8Array) {
      type = 'Uint8Array';
    } else if (array instanceof Uint16Array) {
      type = 'Uint16Array';
    } else if (array instanceof Uint32Array) {
      type = 'Uint32Array';
    } else if (array instanceof Float32Array) {
      type = 'Float32Array';
    } else {
      throw new Error('Check array type failed. Array type is ' + typeof array);
    }
  }

  const ArrayTypes = {
    Uint8Array: 1,
    Uint16Array: 2,
    Uint32Array: 4,
    Float32Array: 14
  };
  return ArrayTypes[type] + ',' + btoa(joinArray(array, ','));
};

export default class WebGLRenderingContext {
  // static GBridge = null;
  className = 'WebGLRenderingContext';

  constructor(canvas, type, attrs) {
    this._canvas = canvas;
    this._type = type;
    this._version = 'WebGL 1.0';
    this._attrs = attrs;
    this._map = new Map();
    Object.keys(GLenum).forEach(name => Object.defineProperty(this, name, {
      value: GLenum[name]
    }));
  }

  get canvas() {
    return this._canvas;
  }

  activeTexture = function (textureUnit) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.activeTexture + ',' + textureUnit, true);
  };
  attachShader = function (progarm, shader) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.attachShader + ',' + progarm.id + ',' + shader.id, true);
  };
  bindAttribLocation = function (program, index, name) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bindAttribLocation + ',' + program.id + ',' + index + ',' + name, true);
  };
  bindBuffer = function (target, buffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bindBuffer + ',' + target + ',' + (buffer ? buffer.id : 0), true);
  };
  bindFramebuffer = function (target, framebuffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bindFramebuffer + ',' + target + ',' + (framebuffer ? framebuffer.id : 0), true);
  };
  bindRenderbuffer = function (target, renderBuffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bindRenderbuffer + ',' + target + ',' + (renderBuffer ? renderBuffer.id : 0), true);
  };
  bindTexture = function (target, texture) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bindTexture + ',' + target + ',' + (texture ? texture.id : 0), true);
  };
  blendColor = function (r, g, b, a) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.blendColor + ',' + target + ',' + r + ',' + g + ',' + b + ',' + a, true);
  };
  blendEquation = function (mode) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.blendEquation + ',' + mode, true);
  };
  blendEquationSeparate = function (modeRGB, modeAlpha) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.blendEquationSeparate + ',' + modeRGB + ',' + modeAlpha, true);
  };
  blendFunc = function (sfactor, dfactor) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.blendFunc + ',' + sfactor + ',' + dfactor, true);
  };
  blendFuncSeparate = function (srcRGB, dstRGB, srcAlpha, dstAlpha) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.blendFuncSeparate + ',' + srcRGB + ',' + dstRGB + ',' + srcAlpha + ',' + dstAlpha, true);
  };
  bufferData = function (target, data, usage) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bufferData + ',' + target + ',' + processArray(data, true) + ',' + usage, true);
  };
  bufferSubData = function (target, offset, data) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.bufferSubData + ',' + target + ',' + offset + ',' + processArray(data, true), true);
  };
  checkFramebufferStatus = function (target) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.checkFramebufferStatus + ',' + target);
    return Number(result);
  };
  clear = function (mask) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.clear + ',' + mask);
    this._canvas._needRender = true;
  };
  clearColor = function (r, g, b, a) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.clearColor + ',' + r + ',' + g + ',' + b, true);
  };
  clearDepth = function (depth) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.clearDepth + ',' + depth, true);
  };
  clearStencil = function (s) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.clearStencil + ',' + s);
  };
  colorMask = function (r, g, b, a) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.colorMask + ',' + r + ',' + g + ',' + b + ',' + a);
  };
  compileShader = function (shader) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.compileShader + ',' + shader.id, true);
  };
  compressedTexImage2D = function (target, level, internalformat, width, height, border, pixels) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.compressedTexImage2D + ',' + target + ',' + level + ',' + internalformat + ',' + width + ',' + height + ',' + border + ',' + processArray(pixels), true);
  };
  compressedTexSubImage2D = function (target, level, xoffset, yoffset, width, height, format, pixels) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.compressedTexSubImage2D + ',' + target + ',' + level + ',' + xoffset + ',' + yoffset + ',' + width + ',' + height + ',' + format + ',' + processArray(pixels), true);
  };
  copyTexImage2D = function (target, level, internalformat, x, y, width, height, border) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.copyTexImage2D + ',' + target + ',' + level + ',' + internalformat + ',' + x + ',' + y + ',' + width + ',' + height + ',' + border, true);
  };
  copyTexSubImage2D = function (target, level, xoffset, yoffset, x, y, width, height) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.copyTexSubImage2D + ',' + target + ',' + level + ',' + xoffset + ',' + yoffset + ',' + x + ',' + y + ',' + width + ',' + height);
  };
  createBuffer = function () {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createBuffer + '');
    const buffer = new Buffer(result);

    this._map.set(buffer.uuid(), buffer);

    return buffer;
  };
  createFramebuffer = function () {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createFramebuffer + '');
    const framebuffer = new Framebuffer(result);

    this._map.set(framebuffer.uuid(), framebuffer);

    return framebuffer;
  };
  createProgram = function () {
    const id = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createProgram + '');
    const program = new Program(id);

    this._map.set(program.uuid(), program);

    return program;
  };
  createRenderbuffer = function () {
    const id = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createRenderbuffer + '');
    const renderBuffer = new Renderbuffer(id);

    this._map.set(renderBuffer.uuid(), renderBuffer);

    return renderBuffer;
  };
  createShader = function (type) {
    const id = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createShader + ',' + type);
    const shader = new Shader(id, type);

    this._map.set(shader.uuid(), shader);

    return shader;
  };
  createTexture = function () {
    const id = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.createTexture + '');
    const texture = new Texture(id);

    this._map.set(texture.uuid(), texture);

    return texture;
  };
  cullFace = function (mode) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.cullFace + ',' + mode, true);
  };
  deleteBuffer = function (buffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteBuffer + ',' + buffer.id, true);
  };
  deleteFramebuffer = function (framebuffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteFramebuffer + ',' + framebuffer.id, true);
  };
  deleteProgram = function (program) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteProgram + ',' + program.id, true);
  };
  deleteRenderbuffer = function (renderbuffer) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteRenderbuffer + ',' + renderbuffer.id, true);
  };
  deleteShader = function (shader) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteShader + ',' + shader.id, true);
  };
  deleteTexture = function (texture) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.deleteTexture + ',' + texture.id, true);
  };
  depthFunc = function (func) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.depthFunc + ',' + func);
  };
  depthMask = function (flag) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.depthMask + ',' + Number(flag), true);
  };
  depthRange = function (zNear, zFar) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.depthRange + ',' + zNear + ',' + zFar, true);
  };
  detachShader = function (program, shader) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.detachShader + ',' + program.id + ',' + shader.id, true);
  };
  disable = function (cap) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.disable + ',' + cap, true);
  };
  disableVertexAttribArray = function (index) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.disableVertexAttribArray + ',' + index, true);
  };
  drawArrays = function (mode, first, count) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.drawArrays + ',' + mode + ',' + first + ',' + count);
    this._canvas._needRender = true;
  };
  drawElements = function (mode, count, type, offset) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.drawElements + ',' + mode + ',' + count + ',' + type + ',' + offset + ';');
    this._canvas._needRender = true;
  };
  enable = function (cap) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.enable + ',' + cap, true);
  };
  enableVertexAttribArray = function (index) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.enableVertexAttribArray + ',' + index, true);
  };
  flush = function () {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.flush + '');
  };
  framebufferRenderbuffer = function (target, attachment, textarget, texture, level) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.framebufferRenderbuffer + ',' + target + ',' + attachment + ',' + textarget + ',' + (texture ? texture.id : 0) + ',' + level, true);
  };
  framebufferTexture2D = function (target, attachment, textarget, texture, level) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.framebufferTexture2D + ',' + target + ',' + attachment + ',' + textarget + ',' + (texture ? texture.id : 0) + ',' + level, true);
  };
  frontFace = function (mode) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.frontFace + ',' + mode, true);
  };
  generateMipmap = function (target) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.generateMipmap + ',' + target, true);
  };
  getActiveAttrib = function (progarm, index) {
    const resultString = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getActiveAttrib + ',' + progarm.id + ',' + index);
    const [type, size, name] = resultString.split(',');
    return new ActiveInfo({
      type: Number(type),
      size: Number(size),
      name
    });
  };
  getActiveUniform = function (progarm, index) {
    const resultString = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getActiveUniform + ',' + progarm.id + ',' + index);
    const [type, size, name] = resultString.split(',');
    return new ActiveInfo({
      type: Number(type),
      size: Number(size),
      name
    });
  };
  getAttachedShaders = function (progarm) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getAttachedShaders + ',' + progarm.id);
    const [type, ...ids] = result;
    return ids.map(id => this._map.get(Shader.uuid(id)));
  };
  getAttribLocation = function (progarm, name) {
    return WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getAttribLocation + ',' + progarm.id + ',' + name);
  };
  getBufferParameter = function (target, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getBufferParameter + ',' + target + ',' + pname);
    const [type, res] = getBufferParameter;
    return res;
  };
  getError = function () {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getError + '');
    return result;
  };
  getExtension = function (name) {
    return null;
  };
  getFramebufferAttachmentParameter = function (target, attachment, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getFramebufferAttachmentParameter + ',' + target + ',' + attachment + ',' + pname);

    switch (pname) {
      case GLenum.FRAMEBUFFER_ATTACHMENT_OBJECT_NAME:
        return this._map.get(Renderbuffer.uuid(result)) || this._map.get(Texture.uuid(result)) || null;

      default:
        return result;
    }
  };
  getParameter = function (pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getParameter + ',' + pname);

    switch (pname) {
      case GLenum.VERSION:
        return this._version;

      case GLenum.ARRAY_BUFFER_BINDING: // buffer

      case GLenum.ELEMENT_ARRAY_BUFFER_BINDING:
        // buffer
        return this._map.get(Buffer.uuid(result)) || null;

      case GLenum.CURRENT_PROGRAM:
        // program
        return this._map.get(Program.uuid(result)) || null;

      case GLenum.FRAMEBUFFER_BINDING:
        // framebuffer
        return this._map.get(Framebuffer.uuid(result)) || null;

      case GLenum.RENDERBUFFER_BINDING:
        // renderbuffer
        return this._map.get(Renderbuffer.uuid(result)) || null;

      case GLenum.TEXTURE_BINDING_2D: // texture

      case GLenum.TEXTURE_BINDING_CUBE_MAP:
        // texture
        return this._map.get(Texture.uuid(result)) || null;

      case GLenum.ALIASED_LINE_WIDTH_RANGE: // Float32Array

      case GLenum.ALIASED_POINT_SIZE_RANGE: // Float32Array

      case GLenum.BLEND_COLOR: // Float32Array

      case GLenum.COLOR_CLEAR_VALUE: // Float32Array

      case GLenum.DEPTH_RANGE: // Float32Array

      case GLenum.MAX_VIEWPORT_DIMS: // Int32Array

      case GLenum.SCISSOR_BOX: // Int32Array

      case GLenum.VIEWPORT: // Int32Array            

      case GLenum.COMPRESSED_TEXTURE_FORMATS: // Uint32Array

      default:
        const [type, ...res] = result.split(',');

        if (res.length === 1) {
          return Number(res[0]);
        } else {
          return res.map(Number);
        }

    }
  };
  getProgramInfoLog = function (progarm) {
    return WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getProgramInfoLog + ',' + progarm.id);
  };
  getProgramParameter = function (program, pname) {
    const res = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getProgramParameter + ',' + program.id + ',' + pname);
    const [type, result] = res.split(',').map(i => parseInt(i));

    if (type === 1) {
      return Boolean(result);
    } else if (type === 2) {
      return result;
    } else {
      throw new Error('Unrecongized program paramater ' + res + ', type: ' + typeof res);
    }
  };
  getRenderbufferParameter = function (target, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getRenderbufferParameter + ',' + target + ',' + pname);
    return result;
  };
  getShaderInfoLog = function (shader) {
    return WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getShaderInfoLog + ',' + shader.id);
  };
  getShaderParameter = function (shader, pname) {
    return WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getShaderParameter + ',' + shader.id + ',' + pname);
  };
  getShaderPrecisionFormat = function (shaderType, precisionType) {
    const [rangeMin, rangeMax, precision] = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getShaderPrecisionFormat + ',' + shaderType + ',' + precisionType);
    const shaderPrecisionFormat = new ShaderPrecisionFormat({
      rangeMin: Number(rangeMin),
      rangeMax: Number(rangeMax),
      precision: Number(precision)
    });
    return shaderPrecisionFormat;
  };
  getShaderSource = function (shader) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getShaderSource + ',' + shader.id);
    return result;
  };
  getSupportedExtensions = function () {
    return Object.keys({});
  };
  getTexParameter = function (target, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getTexParameter + ',' + target + ',' + pname);
    return result;
  };
  getUniformLocation = function (program, name) {
    const id = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getUniformLocation + ',' + program.id + ',' + name);

    if (id === -1) {
      return null;
    } else {
      return new UniformLocation(Number(id));
    }
  };
  getVertexAttrib = function (index, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getVertexAttrib + ',' + index + ',' + pname);

    switch (pname) {
      case GLenum.VERTEX_ATTRIB_ARRAY_BUFFER_BINDING:
        return this._map.get(Buffer.uuid(result)) || null;

      case GLenum.CURRENT_VERTEX_ATTRIB: // Float32Array

      default:
        return result;
    }
  };
  getVertexAttribOffset = function (index, pname) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.getVertexAttribOffset + ',' + index + ',' + pname);
    return Number(result);
  };
  isBuffer = function (buffer) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isBuffer + ',' + buffer.id);
    return Boolean(result);
  };
  isContextLost = function () {
    return false;
  };
  isEnabled = function (cap) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isEnabled + ',' + cap);
    return Boolean(result);
  };
  isFramebuffer = function (framebuffer) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isFramebuffer + ',' + framebuffer.id);
    return Boolean(result);
  };
  isProgram = function (program) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isProgram + ',' + program.id);
    return Boolean(result);
  };
  isRenderbuffer = function (renderBuffer) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isRenderbuffer + ',' + renderbuffer.id);
    return Boolean(result);
  };
  isShader = function (shader) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isShader + ',' + shader.id);
    return Boolean(result);
  };
  isTexture = function (texture) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.isTexture + ',' + texture.id);
    return Boolean(result);
  };
  lineWidth = function (width) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.lineWidth + ',' + width, true);
  };
  linkProgram = function (program) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.linkProgram + ',' + program.id, true);
  };
  pixelStorei = function (pname, param) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.pixelStorei + ',' + pname + ',' + Number(param));
  };
  polygonOffset = function (factor, units) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.polygonOffset + ',' + factor + ',' + units);
  };
  readPixels = function (x, y, width, height, format, type, pixels) {
    const result = WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.readPixels + ',' + x + ',' + y + ',' + width + ',' + height + ',' + format + ',' + type);
    return result;
  };
  renderbufferStorage = function (target, internalFormat, width, height) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.renderbufferStorage + ',' + target + ',' + internalFormat + ',' + width + ',' + height, true);
  };
  sampleCoverage = function (value, invert) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.sampleCoverage + ',' + value + ',' + Number(invert), true);
  };
  scissor = function (x, y, width, height) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.scissor + ',' + x + ',' + y + ',' + width + ',' + height, true);
  };
  shaderSource = function (shader, source) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.shaderSource + ',' + shader.id + ',' + source);
  };
  stencilFunc = function (func, ref, mask) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilFunc + ',' + func + ',' + ref + ',' + mask, true);
  };
  stencilFuncSeparate = function (face, func, ref, mask) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilFuncSeparate + ',' + face + ',' + func + ',' + ref + ',' + mask, true);
  };
  stencilMask = function (mask) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilMask + ',' + mask, true);
  };
  stencilMaskSeparate = function (face, mask) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilMaskSeparate + ',' + face + ',' + mask, true);
  };
  stencilOp = function (fail, zfail, zpass) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilOp + ',' + fail + ',' + zfail + ',' + zpass);
  };
  stencilOpSeparate = function (face, fail, zfail, zpass) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.stencilOp + ',' + face + ',' + fail + ',' + zfail + ',' + zpass, true);
  };
  texImage2D = function (...args) {
    WebGLRenderingContext.GBridge.texImage2D(this._canvas.id, ...args);
  };
  texParameterf = function (target, pname, param) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.texParameterf + ',' + target + ',' + pname + ',' + param, true);
  };
  texParameteri = function (target, pname, param) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.texParameteri + ',' + target + ',' + pname + ',' + param);
  };
  texSubImage2D = function (...args) {
    WebGLRenderingContext.GBridge.texSubImage2D(this._canvas.id, ...args);
  };
  uniform1f = function (location, v0) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform1f + ',' + location.id + ',' + v0);
  };
  uniform1fv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform1fv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform1i = function (location, v0) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform1i + ',' + location.id + ',' + v0 // true
    );
  };
  uniform1iv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform1iv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform2f = function (location, v0, v1) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform2f + ',' + location.id + ',' + v0 + ',' + v1, true);
  };
  uniform2fv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform2fv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform2i = function (location, v0, v1) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform2i + ',' + location.id + ',' + v0 + ',' + v1, true);
  };
  uniform2iv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform2iv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform3f = function (location, v0, v1, v2) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform3f + ',' + location.id + ',' + v0 + ',' + v1 + ',' + v2, true);
  };
  uniform3fv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform3fv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform3i = function (location, v0, v1, v2) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform3i + ',' + location.id + ',' + v0 + ',' + v1 + ',' + v2, true);
  };
  uniform3iv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform3iv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform4f = function (location, v0, v1, v2, v3) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform4f + ',' + location.id + ',' + v0 + ',' + v1 + ',' + v2 + ',' + v3, true);
  };
  uniform4fv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform4fv + ',' + location.id + ',' + processArray(value), true);
  };
  uniform4i = function (location, v0, v1, v2, v3) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform4i + ',' + location.id + ',' + v0 + ',' + v1 + ',' + v2 + ',' + v3, true);
  };
  uniform4iv = function (location, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniform4iv + ',' + location.id + ',' + processArray(value, true), true);
  };
  uniformMatrix2fv = function (location, transpose, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniformMatrix2fv + ',' + location.id + ',' + Number(transpose) + ',' + processArray(value), true);
  };
  uniformMatrix3fv = function (location, transpose, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniformMatrix3fv + ',' + location.id + ',' + Number(transpose) + ',' + processArray(value), true);
  };
  uniformMatrix4fv = function (location, transpose, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.uniformMatrix4fv + ',' + location.id + ',' + Number(transpose) + ',' + processArray(value), true);
  };
  useProgram = function (progarm) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.useProgram + ',' + progarm.id + '', true);
  };
  validateProgram = function (program) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.validateProgram + ',' + program.id, true);
  };
  vertexAttrib1f = function (index, v0) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib1f + ',' + index + ',' + v0, true);
  };
  vertexAttrib2f = function (index, v0, v1) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib2f + ',' + index + ',' + v0 + ',' + v1, true);
  };
  vertexAttrib3f = function (index, v0, v1, v2) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib3f + ',' + index + ',' + v0 + ',' + v1 + ',' + v2, true);
  };
  vertexAttrib4f = function (index, v0, v1, v2, v3) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib4f + ',' + index + ',' + v0 + ',' + v1 + ',' + v2 + ',' + v3, true);
  };
  vertexAttrib1fv = function (index, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib1fv + ',' + index + ',' + processArray(value), true);
  };
  vertexAttrib2fv = function (index, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib2fv + ',' + index + ',' + processArray(value), true);
  };
  vertexAttrib3fv = function (index, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib3fv + ',' + index + ',' + processArray(value), true);
  };
  vertexAttrib4fv = function (index, value) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttrib4fv + ',' + index + ',' + processArray(value), true);
  };
  vertexAttribPointer = function (index, size, type, normalized, stride, offset) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.vertexAttribPointer + ',' + index + ',' + size + ',' + type + ',' + Number(normalized) + ',' + stride + ',' + offset, true);
  };
  viewport = function (x, y, width, height) {
    WebGLRenderingContext.GBridge.callNative(this._canvas.id, GLmethod.viewport + ',' + x + ',' + y + ',' + width + ',' + height, true);
  };
}